The Effect of Antioxidant Supplementation on Fatigue During Exercise: Potential Role for NAD+(H)
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Abstract
This study compared serum pyridine levels (NAD+ /NADH) in trained (n = 6)and untrained (n = 7) subjects after continuous progressive exercise at 50%, 70% then 95% of physical work capacity until fatigue (TTF) after consuming a placebo or antioxidant (AO) cocktail (Lactaway ©). An increase of 17% in TTF was observed in AO as compared to placebo (p = 0.032). This was accompanied by a significant increase in serum NAD+ levels (p = 0.037) in the AO supplemented group post exercise. The increases in NAD+ and improved endurance reflect lower oxidative stress-induced suppression of aerobic respiration.
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Mach, J., Midgley, A. W., Dank, S., Grant, R. S., & Bentley, D. J. (2010). The effect of antioxidant supplementation on fatigue during exercise: Potential role for NAD+(H). Nutrients, 2(3), 319-329. doi:10.3390/nu2030319